$(function() {
    function bindcaptchaBtnclic(){
        $("#captcha-btn").click(function(event) {
        let $this = $(this);
        let email = $("input[name='email']").val();
        if (!email) {
            alert("请先输入邮箱!");
            return;
        }
        //取消按钮的点击事件
        $this.off('click');
        // 13680972988@163.com
        $.ajax("send_email_captcha?email="+email,{
            method:'GET',

            success: function(result) {
                if (result['code'] == 200) {
                    alert("验证码发送成功!");
                } else {
                    alert(result['message']);
                }
            },
                fail: function (error) {
                    console.log(error);
                }
            })

        // 倒计时
        let countdown = 6;
        let timer = setInterval(function () {
            if (countdown <= 0) {
                $this.text('获取验证码');
                // 清掉定时器
                clearInterval(timer);
                bindcaptchaBtnclic();
            } else {
                countdown--;
                $this.text(countdown + "s")
            }
        }, 1000);
    })
    }

    bindcaptchaBtnclic();

});